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Solution #2484
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Solution #2484
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,12 +1,56 @@ | ||
| 'use strict'; | ||
|
|
||
| /** | ||
| * Implement method Sort | ||
| */ | ||
| // Função que adiciona um método de ordenação customizado ao Array | ||
| function applyCustomSort() { | ||
| [].__proto__.sort2 = function(compareFunction) { | ||
| // write code here | ||
| // Função de comparação padrão | ||
| const defaultCompare = (a, b) => { | ||
| const stringA = a !== undefined ? String(a) : undefined; | ||
| const stringB = b !== undefined ? String(b) : undefined; | ||
|
|
||
| // Regras de comparação para valores undefined e strings | ||
| return stringA === undefined && stringB === undefined | ||
| ? 0 | ||
| : stringA === undefined | ||
| ? 1 | ||
| : stringB === undefined | ||
| ? -1 | ||
| : stringA > stringB | ||
| ? 1 | ||
| : stringA < stringB | ||
| ? -1 | ||
| : 0; | ||
| }; | ||
|
|
||
| // Adiciona o método sort2 ao protótipo de Array | ||
| [].__proto__.sort2 = function (compareFunction = defaultCompare) { | ||
| const arr = this; | ||
| let item = arr[0]; | ||
|
|
||
| // Valida se compareFunction é uma função ou undefined | ||
| if ( | ||
| compareFunction !== undefined && | ||
| typeof compareFunction !== 'function' | ||
| ) { | ||
| throw new TypeError( | ||
| 'A função de comparação deve ser uma função ou undefined', | ||
| ); | ||
| } | ||
|
|
||
| // Algoritmo de ordenação simples (bubble sort adaptado) | ||
| for (let i = 0; i < arr.length - 1; i++) { | ||
| for (let j = i + 1; j < arr.length; j++) { | ||
| if (compareFunction(arr[i], arr[j]) > 0) { | ||
| item = arr[i]; | ||
| arr[i] = arr[j]; | ||
| arr[j] = item; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // Retorna o array ordenado | ||
| return arr; | ||
| }; | ||
| } | ||
|
|
||
| // Exporta a função para uso em outros arquivos | ||
| module.exports = applyCustomSort; | ||
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The
itemvariable is initialized here witharr[0], but this initial value is never actually used. The variable is reassigned within the loop before it's used for swapping. To improve clarity and keep the variable's scope as narrow as possible, consider declaring it just before it's needed inside the loop.